Successfully decoupled- Can you hear it? Measure it?
Or is it imagination? (Which is a powerful beast )

- How much isolation is needed? Is my decoupling successful?

Intuitively (to me at least) you have to measure vibration levels because it’s difficult too measure acoustically.


Is 10 dB isolation enough (or maybe difficult to reach?

Wobbling speaker cabinet? E.g rhythmic kick drum @ 120 BPM How to measure that? (IM dist?) I dont know…

To me the challenge when flush mounting speakers are:
At the same time soft decoupling (large static deflection), increase resistance to cabinet movement (inertia/ extra load) and then ruin the whole idea with a too stiff trim sealing the gap around the cabinet.

Best

And if you like to change loudspeakers at a later date...